Preheat oven to 350℉. Line 2 baking sheets with parchment paper.
In a large bowl, stir together cake mix, eggs, and melted butter (or oil) until a sticky dough forms. Mix in ¾ cup of chocolate chips.
Use a cookie scoop or spoon to drop heaped tablespoonfuls on the prepared cookie sheet, leaving 2 inches of space between cookies. Press remaining chocolate chips onto the tops of the cookies.
Bake for 8 to 10 minutes. Let rest for 5 minutes before removing from the cookie sheet.
Notes
If using a 15.25-ounce box of cake mix, increase the butter or oil to ½ cup.Keep leftovers in an airtight container at room temperature for up to 3 days, in the refrigerator for up to 5 days, and in the freezer for up to 2 months.